ISO 9237,ASTM D737 Fabric Air Permeability Testing Equipment Digital Air Permeability Tester

Air Permeability Tester is suitable for measuring the air permeability of fabrics, which can be applicable to do air permeability test of most types of fabrics, including industrial fabrics for technical purposes, nonwovens and made-up textile articles that are permeable to air.

Why measure the air permeability of fabric?

Clothing materials should have certain air permeability, which is conducive to the exchange of air inside and outside the fabric and the metabolism of human skin.Based on this reason,it is necessarily to do air permeability test for fabric.

Principle of air permeability test:

Under the specified differential pressure condition, the airflow flow through the given area of the sample vertically within a certain time was measured and the permeability was calculated.

Air permeability evaluation:

For thermal underwear products, the higher the permeability, the better the results.For windproof products, the lower the permeability, the better the results.

Features of Air Permeability Instrument:

• Large measuring range (0.5~10,000mm/s), no need to change test area under normal circumstances;
• Use 32bit Industry-grade MCU (Mitsubishi, Japan), more excellent anti-jamming, more excellent
•        stability, more rapid data transference speed, and data storage up to 99groups;
• All orifice plates have been calibrated point-by-point in full testing range;
• Directly test on the sample, no need to cut samples;
• Automatically remind when samples are not clamped well, delete the test result when pressing the
•        handle in the testing process;
• Automatically identify the diameter of orifice plate;
• Special designed sample holder accomplish test in box and ensure the yarn without slip;
• With the function of saving data when power down;
• Different sample effective test area is optional (5cm2, 20cm2, 25 cm2, 38cm2, 50 cm2, 100cm2);

Note:

• Different orifice plates are available (Φ0.5mm, Φ1.0mm, Φ1.5mm, Φ2.5mm, Φ4.5mm, Φ8.0mm, Φ14.5mm, Φ26mm);
• Branded high accuracy pressure sensor, digital feedback and adjust air volume;
• Touch screen display with mini-printer;

Key Specification of Digital Air Permeability Tester